The numerical simulation of laser-MIG hybrid welding for Invar alloy

Composites are widely applied to the manufacturing of aircraft in aviation.Forming of large-scale composite component in aircraft requires the corresponding mold with precise size.The laser-MIG hybrid welding has a significant advantage in the manufacturing of Invar mold for aircraft composites.This paper mainly introduces the application of the laser-MIG hybrid welding,and the distribution of thermal field and flow field on the Invar alloy laser-MIG hybrid three-layer welding is analyzed and discussed specifically.